Electricity Basics Quiz

If the voltage across a resistor is 10V and the current through it is 2A, what is the resistance?

• 5 ohms

• 10 ohms

• 20 ohms

• 2 ohms

Which of the following is the unit of current?

• Volt

• Ohm

• Ampere

• Watt

In a series circuit, the total resistance is:

• The sum of the individual resistances

• The product of the individual resistances

• The reciprocal of the sum of the reciprocals of the individual resistances

• The difference of the individual resistances

In a parallel circuit, the total resistance is:

• The sum of the individual resistances

• The product of the individual resistances

• The reciprocal of the sum of the reciprocals of the individual resistances

• The difference of the individual resistances

What happens to the total current in a parallel circuit if more branches are added?

• It increases

• It decreases

• It remains the same

• It becomes zero

If a resistor of 4 ohms is connected in series with a resistor of 6 ohms, what is the total resistance?

• 2 ohms

• 10 ohms

• 24 ohms

• 1.5 ohms

If a resistor of 4 ohms is connected in parallel with a resistor of 6 ohms, what is the total resistance?

• 2.4 ohms

• 10 ohms

• 24 ohms

• 1.5 ohms

What is the unit of resistance?

• Volt

• Ohm

• Ampere

• Watt

If the current through a 5 ohm resistor is 3A, what is the voltage across the resistor?

• 15V

• 1.67V

• 8V

• 0.6V

Which of the following statements is true for a series circuit?

• The voltage is the same across all components

• The current is the same through all components

• The resistance is the same across all components

• The power is the same across all components